Zeta Potential of Calcium Carbonate Precipitated in the Presence of Sodium Polyacrylates
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BUCKLING ANALYSIS OF GRAPHENE NANOSHEETS BASED ON NONLOCAL ELASTICITY THEORY
This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is consi…
Synthesis and Electrical Properties of PZT/BaFe<sub>12</sub>O<sub>19</sub> Multiferroic Ceramics
Multiferroic ceramics, based on the ferroelectric and ferrimagnetic phases of the Pb(Zr0.65Ti0.35)O3 (PZT) and BaFe12O19 (BaM) systems, respectively, were obtained from the conventional ceramic method. The electrical properties have been investigated in a wide temperature and frequency range. The influence of the magn…
Development and characterization of cotton and organic cotton gauze fabric coated with biopolymers and antibiotic drugs for wound healing
The present work deals with the development and characterisation of cotton and organic cotton based bandage using 40 s Ne yarn. The physical properties such as areal density, air permeability and stiffness of fabrics have been measured. Chitosan-sodium alginate polymer, calcium-sodium alginate polymer and their mixtur…
A chemical and structural re-examination of fettelite samples from the type locality, Odenwald, southwest Germany
Abstract The crystal structure and chemical composition of two samples of fettelite from the type locality, including a portion of the holotype material, was investigated to verify if a previously proposed revision of the chemical formula was applicable, and to study the role of cation substitution for Hg that would s…
COMPOSITION DEPENDENCE OF SPECTROSCOPIC PROPERTIES AND TRANSPARENCY OF SIO2-TIO2-NA2-O GLASS IN 200-1100 NM
Glassy samples with xTiO 2 .3SiO 2 .Na 2 O composition that (8≤x≤40) (molar) were casted in refractory steel molds after melting at air as parallel palates. After polishing and getting to desire thickness, UV-VIS spectrometry in 200 -1100 nm was measured on samples. Glass density was measured by a sensitive micro bala…
Simulating insulation systems under various environmental conditions in the laboratory
Over the last century as electrical motor testing became prominent in industry, little research has been published on simulating insulation systems in various environmental conditions such as moisture and contamination that are found in the field. In this paper, summary results of research performed using simulation s…
On-site transformer partial discharge diagnosis
In the lab, partial discharge diagnosis has widely replaced the traditional RIV measurements. Additionally, partial discharge acceptance levels are being reduced due to the increasing use of composite material and a growing awareness of partial discharge phenomenon and their consequences. Adequate filtering of the sup…
Supramolecular Hydrogels Based on Silver Mercaptide. Self‐Organization and Practical Application
Abstract Summary: A novel supramolecular thixotropic hydrogel based on low‐concentrated solutions of L‐ cysteine and silver nitrate is synthesized. Self‐organization and gelation in the system are studied experimentally by means of UV‐vis and FTIR spectroscopy, dynamic light scattering, rotational viscometry, transmis…
Converting waste heat from automobiles to electrical energy
The world is facing energy crisis and with our fuel resources coming to end, there need to be ways to use wasted and available forms of energy to produce electricity or utilize them to reduce usage of other power hungry devices. To meet the increasing world demand for energy, the rate of depletion of non-renewable ene…
An easy way to prepare layered nanoplatelets: Fragment of nanostructured multilayers
In this study, we present an easy way to create layered-nanoplatelets with well-defined geometry by controlling the cracking process of nanostructured multilayers. The geometrical dimension of layered-nanoplatelets is determined by the multilayer intrinsic size, the total strain, and the elastic mismatch between the s…
Electrospun Aligned Poly(L-lactide)/Poly(ϵ-caprolactone) /Poly(ethylene glycol) Blend Fibrous Membranes
Aligned poly(L-lactide) (PLLA)/poly(ϵ-caprolactone) (PCL)/poly(ethylene glycol)(PEG) fibrous membranes were fabricated by electrospinning. Their morphology, thermal stability, mechanical properties, hydrophilic properties and in vitro degradation behaviors were investigated. With increasing the content of PEG, the PLL…
Comparison of x-ray diffraction, wafer curvature and Raman spectroscopy to evaluate the stress evolution in Copper TSV's
In this work we compare techniques to measure the stress in Cu through silicon via's (TSV's) and study the stress as a function of post-plating anneal time and temperature. Our results show that each technique was able to measure the stresses with good agreement. However, wafer curvature was limited to measuring the i…
Role of the soil particle-size fractions in the sorption and desorption of potassium
The sorption and desorption capacities of two soils (a loamy soddy-podzolic soil and a sandy clay chernozem) were analyzed. Both the entire soils and their particle-size fractions were studied. Samples were taken from the soils of long-term field experiments with fertilizers. A 0.01 M CaCl 2 solution was used as the e…
The Influence of Crysnanoclay Addition on Mechanical and Thermal Properties of Thermoplastic Polyurethane Elastomeric with Polycarbonate Nanocomposites
A series of crysnanoclay-loaded thermoplastic polyurethane (TPU) elastomer/polycarbonate (PC) nanocomposites have been prepared using twin screw extruders. The physicomechanical properties such as tensile behaviors, flexural properties and impact strength of the composites have been reported. Significant improvement i…
Design enablement: The challenge of being early, accurate, and complete
Progress evidenced by Moore's Law has driven increased performance at decreased cost per function. Often, the price of this progress is balanced against complexity and time-to-market (both directly impacting cost). Design enablement teams must mitigate these cost factors by delivering accurate process design kits (PDK…
Controlling the electrical properties of ZnO films by forming zinc and oxide bridges by a plasma and electron-assisted process
A new method to produce electrically steady ZnO films without any heating process has been developed by using plasma and electron beams to facilitate bonding between the metallic component and the oxygen on coated ZnO films. Both plasma atmosphere and electron beams can function as sources of nonequilibrium bonding en…
The Effect of Structural State on Magnetic and Magnetocaloric Properties of Micro-and Nanocrystalline Gd
The effect of micro-and nanocrystalline structural state on magnetic properties and magnetic entropy (ΔS M ) of Gd is investigated. The marked influence of severe plastic deformation on ΔS M is demonstrated.
Improvement in Film Quality of Epitaxial Graphene on SiC(111)/Si(111) by SiH4 Pretreatment
The epitaxy of graphene on 3C-SiC/Si (GOS) has attracted much attention owing to its viability to fuse graphene with Si-based technologies. It is known that the surface condition of the 3C-SiC thin film before graphitization plays a decisive role in determining the quality of the GOS film. We have investigated the eff…
Effect of rare earth substitution in the density of electronic states of LnOFeAs
Measurements of the Fe K-edge x-ray absorption near edge (XANES) spectra of LnOFeAs (Ln being a lanthanide) high Tc superconductors exhibit significant changes in the pre-edge peak region upon rare earth substitution. Ab initio XANES calculations, based on the local structure centered at the Fe site obtained by crysta…